ISC BIND 9.4.2-P2 is now available - DNS

This is a discussion on ISC BIND 9.4.2-P2 is now available - DNS ; BIND 9.4.2-P2 is now available.
This is the SECOND security patch for BIND 9.4.2, addressing
performance and stability issues in BIND 9.4.2-P1. Key features
are as follows:
- performance improvement over the P1 releases, namely
+ significantly remedying the port ...

ISC BIND 9.4.2-P2 is now available

This is the SECOND security patch for BIND 9.4.2, addressing
performance and stability issues in BIND 9.4.2-P1. Key features
are as follows:

- performance improvement over the P1 releases, namely
+ significantly remedying the port allocation issues
+ allowing TCP queries and zone transfers while issuing as many
outstanding UDP queries as possible
+ additional security of port randomization at the same level as P1

NOTE: There are some remaining stability problems in 9.4.2-P2 when
running under Microsoft Windows. A fix has been implemented, but
missed the cutoff time for this release; it will be addressed in a
Windows-specific release very soon.

2406. [bug] Some operating systems have FD_SETSIZE set to a
low value by default, which can cause resource
exhaustion when many simultaneous connections are
open. Linux in particular makes it difficult to
increase this value. To use more sockets with
select(), set ISC_SOCKET_FDSETSIZE. Example:
STD_CDEFINES="-DISC_SOCKET_FDSETSIZE@96" ./configure
(This should not be necessary in most cases, and
never for an authoritative-only server.) [RT #18328]